標題: DETERMINATION OF UNIT HYDROGRAPHS BY MULTIPLE STORM ANALYSIS
作者: ZHAO, B
TUNG, YK
YANG, JC
土木工程學系
Department of Civil Engineering
關鍵字: UNIT HYDROGRAPH;LEAST SQUARE METHODS;REGRESSION ANALYSIS
公開日期: 1-Dec-1994
摘要: This paper discusses the derivation of a unit hydrograph by multiple storm analysis using least squares methods. Variations of least squares method was generalized using the framework of weighted ridge analysis. The paper also shows two theorems to support using multi-storm analysis to derive UH. In addition, an issue was addressed on the scaling effect in the conventional multi-storm analysis which could create potential bias toward large storms in deriving a multi-storm UH. For that, a simple scaling procedure was proposed to reduce such potential bias problem. Numerical investigations were conducted to examine the performance of the scaling procedure by comparing with the conventional multi-storm analysis (without scaling) and the HEC-1 weighing procedures. Based on various performance criteria using a total of 39 storms from three watersheds, the proposed scaling procedure was found to produce a quite desirable UH.
URI: http://dx.doi.org/10.1007/BF01588757
http://hdl.handle.net/11536/2204
ISSN: 0931-1955
DOI: 10.1007/BF01588757
期刊: STOCHASTIC HYDROLOGY AND HYDRAULICS
Volume: 8
Issue: 4
起始頁: 269
結束頁: 280
Appears in Collections:Articles